.brand-year.color1 .brand-year-title, .brand-year.color1 .main-timeline .description, .brand-year.color1 .main-timeline .year{
    color: #70c1ec;
}
.brand-year.color2 .brand-year-title, .brand-year.color2 .main-timeline .description, .brand-year.color2 .main-timeline .year{
    color: #f08b38;
}
.brand-year.color2 .main-timeline:before, .brand-year.color2 .main-timeline .timeline-content:before, .brand-year.color2 .main-timeline .icon{
    background-color: #f08b38;
}
.brand-year.color3 .brand-year-title, .brand-year.color3 .main-timeline .description, .brand-year.color3 .main-timeline .year{
    color: rgb(244, 205, 39);
}
.brand-year.color3 .main-timeline:before, .brand-year.color3 .main-timeline .timeline-content:before, .brand-year.color3 .main-timeline .icon{
    background-color: rgb(244, 205, 39);
}
.brand-year.color4 .brand-year-title, .brand-year.color4 .main-timeline .description, .brand-year.color4 .main-timeline .year{
    color: rgb(159, 198, 175);
}
.brand-year.color4 .main-timeline:before, .brand-year.color4 .main-timeline .timeline-content:before, .brand-year.color4 .main-timeline .icon{
    background-color: rgb(159, 198, 175);
}
header .nav nav .nav_top ul li.nav-item-in .nav-link{
    border-bottom-color: #19bae5;
    color: rgba(0,0,0,.7);
}
main{
    padding: 90px 0 0 0;
}
.main .kv-brand{
    width: 100%;
    height: 265px;
    background: url(../img/kv-brand.jpg)no-repeat;
    display: table;
    position: relative;
    margin-bottom: 20px;
}
.main .brand-nav{
    margin-bottom: 20px;
    text-align: center;
    font-size: 16px;
    padding: 30px 0;
}
.main .brand-nav a.active{
    color: #00b5e2;
}
.main .brand-nav a{
    padding: 0 20px;
    color: #333;
}
.main .brand-nav a:hover{
    color: #00b5e2;
}
.main .brand-content{
    padding: 50px 100px;
    background-color: white;
    position: relative;
}
.main .brand-content .title{
    font-size: 24px;
    text-align: center;
    margin-bottom: 20px;
}
.brand-content .brand-year{
    margin-bottom: 30px;
}
.brand-content .brand-year .brand-year-title{
    font-size: 20px;
    text-align: center;
    margin-bottom: 10px;
}
.main-timeline{
    position: relative;
}
.main-timeline:before{
    content: "";
    width: 4px;
    height: 100%;
    background: #70c1ec;
    position: absolute;
    top: 0;
    left: 50%;
    margin-left: -2px;
}
.main-timeline .timeline{
    width: 50%;
    float: left;
    position: relative;
    z-index: 1;
}
.main-timeline .timeline:nth-child(odd) {
    margin: -100px 0 0 0;
}
.main-timeline .timeline:first-child {
    margin: 30px 0 0 0;
}
.main-timeline .timeline-content{
    width: 420px;
    text-align: center;
    position: relative;
    transition: all .3s ease 0s;
}
.main-timeline .timeline-content:before{
    content: "";
    width: 29px;
    height: 1px;
    background: #70c1ec;
    position: absolute;
    top: 11px;
    right: -40px;
    z-index: -1;
}
.main-timeline .year{
    display: block;
    margin-bottom: 5px;
    text-align: right;
    font-size: 16px;
}
.video-play-btn{
    cursor: pointer;
}
.main-timeline .figure{
    width: 420px;
    height: 235px;
    overflow: hidden;
    position: relative;
    margin-bottom: 5px;
    cursor: pointer;
}
.main-timeline .figure img{
    transition: all .2s ease-in;
    width: 100%;
}
.main-timeline .figure .mask{
    width: 100%;
    height: 100%;
    background-color: rgba(0,0,0,0.2);
    position: absolute;
    top: 0;
    left: 0;
    z-index: 2;
}
.timeline .figure:hover img{
    transform:scale(1.04);
}
.main-timeline .figure:hover .mask{
    display: none;
}
.figure img{
    display: block;
    margin: 0 auto;
    transition: all .2s ease-in;
}
.main-timeline .figure .icon-play{
    width: 60px;
    height: 60px;
    background-image: url(../img/icon-play-lg.png);
    background-repeat: no-repeat;
    background-size: 200% 100%;
    position: absolute;
    top: 50%;
    left: 50%;
    margin: -30px 0 0 -30px;
    z-index: 3;
}
.main-timeline .figure:hover .icon-play {
    background-position: 100% 0;
}
.main-timeline .figure .bar{
    width: 0%;
    height: 4px;
    background-color: #70c1ec;
    opacity: 0;
    position: absolute;
    top: 0;
    left: 0;
    z-index: 3;
}
.main-timeline .figure:hover .bar {
    animation: ani-bar linear forwards;
    animation-duration: 0.5s;
    animation-iteration-count: 1;
    opacity: 1;
    width: 100%;
}
.main-timeline .description{
    line-height: 36px;
    font-size: 16px;
    color: #70c1ec;
    text-align: justify;
}
.main-timeline .icon{
    width: 20px;
    height: 20px;
    border-radius: 50%;
    background: #70c1ec;
    position: absolute;
    top: 1px;
    right: -60px;
}
.main-timeline .timeline:nth-child(even) {
    margin-bottom: 50px;
    padding-left: 50px;
}
.main-timeline .timeline:nth-child(2) {
    margin-top: 140px;
}
.main-timeline .timeline:nth-child(2n) .timeline-content:before {
    right: auto;
    left: -40px;
}
.main-timeline .timeline:nth-child(2n) .year {
    text-align: left;
}
.main-timeline .timeline:nth-child(2n) .icon {
    right: auto;
    left: -60px;
}
.year-line.affix {
    position: fixed;
    top: 274px;
}
.year-line {
    z-index: 999;
    width: 80px;
    height: 200px;
    position: absolute;
    margin-left: 615px;
    left: 50%;
    top: 510px;
}
.year-line:before {
    width: 1px;
    height: 100%;
    content: "";
    position: absolute;
    left: 0;
    top: 20px;
    background-color: #707070;
}
.year-line li {
    height: 40px;
    line-height: 40px;
    font-size: 16px;
    text-align: center;
    padding-left: 25px;
    margin-bottom: 30px;
    cursor: pointer;
    position: relative;
}
.year-line li:before {
    width: 15px;
    height: 15px;
    content: "";
    border-radius: 50%;
    position: absolute;
    left: -7px;
    top: 12px;
    background-color: white;
    border: 1px #707070 solid;
}
.year-line li.active {
    background: url(../img/arrowBg.png) center right no-repeat;
    color: #00b5e2;
}
.year-line li.active:before {
    background-color: #00b5e2;
    border-color: #00b5e2;
}
@media (max-width: 600px){
    main{
        padding: 60px 0 0 0;
    }
    .main .kv-brand{
        height: 130px;
        background-size: 100% 100%;
    }
    .main .brand-content{
        padding:0;
    }
    .main{
        display: block;
    }
    .main-timeline .figure{
        width: 100%;
        height: 80px;
    }
    .main-timeline .timeline-content{
        width: 90%;
    }
    .main-timeline .timeline:nth-child(odd){
        padding-left: 20px;
    }
    .main-timeline .timeline:nth-child(even){
        padding-left: 25px;
    }
    .main-timeline:before{
        width: 2px;
    }
    .main-timeline .icon{
        width: 10px;
        height: 10px;
        right: -21px;
        top: 6px;
    }
    .main-timeline .timeline-content:before{
        right: -11px;
        width: 12px;
    }
    .main-timeline .timeline:nth-child(2n) .icon{
        left: -31px;
    }
    .main-timeline .timeline:nth-child(2n) .timeline-content:before{
        left: -21px;
    }
    .main-timeline .figure img{
        height: 100%;
    }
    .main-timeline .figure .icon-play{
        width: 50px;
        height: 50px;
    }
    .main-timeline .description{
        font-size: 14px;
        line-height: 26px;
    }
}
@media (max-width: 550px){
    .main-timeline .icon{
        right: -13.5%;
    }
    .main-timeline .timeline-content:before{
        right: -10%;
    }
}
@media (max-width: 400px){
    .main-timeline .icon{
        right: -13.8%;
    }
}
@media (max-width: 360px){
    .main-timeline .icon{
        right: -14%;
    }
    .footer_1_1 .float-l{
        float: none;
    }
    .footer .footer_1 .footer_1_1 .border_r_gray{
        border: none;
    }
    .footer_1{
        height: auto;
    }
}